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Jxd-a (g) 220v-600v phase sequence / phase failure protector
Product description
The protector is a motor protector integrating two protection functions of phase sequence and phase failure.
The protector is of positive state type, that is, during normal operation, the internal relay is closed and the indicator light is on.
1、Features of the protector:
1. Dynamic phase failure protection (phase failure protection during motor rotation): when the motor operation interrupts one phase, because the other two phases are still energized and the squirrel cage rotor is still rotating, there is still quite high induced electromotive force on the phase failure, even quite close to the power supply voltage. This protector can identify this phase failure.
2. Self tracking of operating point: the dynamic open phase voltage drop of motor is a relatively fixed difference.
3. Delay function: when the power grid is in bad condition, sometimes the voltage will drop instantaneously (such as the startup of high-power equipment nearby). The delay function is to identify whether the voltage drops instantaneously or continuously, so as to avoid misoperation.
4. The protector is easy to install and connect, and has nothing to do with the motor power.
2、Main technical indexes of the protector:
Service temperature: - 20 ~ + 55 ℃
Relative humidity: ≤ 90%
Power supply voltage: AC220V 50Hz / 60Hz
Contact output: AC250V 5A dc30v 5A 2Z
The protector is of positive state type, that is, during normal operation, the internal relay is closed and the indicator light is on.
1、Features of the protector:
1. Dynamic phase failure protection (phase failure protection during motor rotation): when the motor operation interrupts one phase, because the other two phases are still energized and the squirrel cage rotor is still rotating, there is still quite high induced electromotive force on the phase failure, even quite close to the power supply voltage. This protector can identify this phase failure.
2. Self tracking of operating point: the dynamic open phase voltage drop of motor is a relatively fixed difference.
3. Delay function: when the power grid is in bad condition, sometimes the voltage will drop instantaneously (such as the startup of high-power equipment nearby). The delay function is to identify whether the voltage drops instantaneously or continuously, so as to avoid misoperation.
4. The protector is easy to install and connect, and has nothing to do with the motor power.
2、Main technical indexes of the protector:
Service temperature: - 20 ~ + 55 ℃
Relative humidity: ≤ 90%
Power supply voltage: AC220V 50Hz / 60Hz
Contact output: AC250V 5A dc30v 5A 2Z